CN216274572U - Friction nanometer power generation fabric and power generation carpet - Google Patents

Abstract

The utility model discloses a friction nanometer power generation fabric and a power generation carpet. The friction nanometer power generation fabric comprises a flexible conductive fiber framework and flexible braided yarns, wherein the flexible conductive fiber framework is provided with a plurality of grid structures, and the flexible braided yarns are arranged in the grid structures in an inserting mode so as to cover the flexible conductive fiber framework; when an external object is contacted and separated with the flexible braided yarn, the flexible conductive fiber framework can output electric energy outwards. The friction nanometer power generation fabric has good flexibility and durability, can be woven into clothes, can endow the manufactured cloth and clothes with good comfort, fitting property and the like, realizes the combination of an energy system and the clothes, constructs wearable energy, has high energy collection efficiency, and can be applied to the design of a high-performance self-driven sensor with stable performance and easy large-scale integration, such as a self-driven human body sensor, and realizes human body health monitoring.

Description

Triboelectric nano-generating fabrics and carpets that can generate electricity

technical field

The utility model relates to the technical field of energy, in particular to a friction nanometer power-generating fabric and a power-generating carpet.

Background technique

Today's society's energy structure and its supply situation are facing unprecedented challenges, and research on green and clean new energy technologies has become a top priority. Mechanical energy, as one of the most abundant energies in the human living environment, has the characteristics of continuity, independence, easy availability, and extensiveness. Meanwhile, triboelectric nanogenerators have developed into a powerful technology for converting mechanical energy into electrical energy through the coupling of contact electrification and electrostatic induction, which can effectively harvest energy from irregular and low-frequency human motion to power wearable electronic devices Even directly developed as a self-driving sensor.

With the increasing number of wearable electronic devices, fabric triboelectric nanogenerators that are soft, stretchable, and compatible with wearable electronic devices have received increasing attention. However, most fabric triboelectric nanogenerators use coating, electrospinning, dyeing, etc. to attach conductive materials, rendering them non-washable and far less comfortable than ordinary fabrics. Moreover, due to the variable bending structure, non-uniform surface topography, and complex material properties of textiles, the conductive coatings overlaid on fabric triboelectric nanogenerators tend to peel off, resulting in poor durability and low energy harvesting efficiency. In addition, the complex preparation process requires a lot of labor costs, making it difficult to achieve mass production.

Utility model content

The embodiments of the present utility model provide a friction nanometer power generation fabric and a carpet capable of generating electricity, so as to solve the problems of poor durability and low energy collection efficiency of the existing fabric friction nanometer generator.

On the one hand, an embodiment of the present invention proposes a triboelectric nano-power generation fabric, which includes a flexible conductive fiber skeleton and a flexible woven yarn, the flexible conductive fiber skeleton has a plurality of mesh structures, and the flexible woven yarn is interspersed and arranged in the A plurality of the mesh structures form a flexible woven surface to cover the flexible conductive fiber skeleton; when an external object is contacted and separated from the flexible woven yarn, the flexible conductive fiber skeleton can output electrical energy to the outside.

According to an aspect of the embodiment of the present invention, the flexible conductive fiber skeleton includes warp threads and weft threads, and the warp threads and the weft threads are arranged in sequence to form the flexible conductive fiber skeleton.

According to an aspect of the embodiments of the present invention, the warp thread includes at least one first conductive fiber; when there are multiple first conductive fibers, the multiple first conductive fibers are intertwined along the extending direction of the warp thread .

According to an aspect of the embodiment of the present invention, the first conductive fibers include pure metal textile yarns, pure metal yarns, metal fiber core-spun yarns, metal fiber blended yarns, pure stainless steel textile yarns, pure stainless steel yarns, stainless steel One or more of fiber core-spun yarn, stainless steel fiber blended yarn, and inorganic fiber core-spun yarn.

According to an aspect of the embodiment of the present invention, the weft thread includes at least one second conductive fiber; when there are multiple second conductive fibers, a plurality of the second conductive fibers are intertwined along the extending direction of the weft thread .

According to an aspect of the embodiment of the present invention, the second conductive fibers include pure metal textile yarns, pure metal yarns, metal fiber core-spun yarns, metal fiber blended yarns, pure stainless steel textile yarns, pure stainless steel yarns, stainless steel One or more of fiber core-spun yarn, stainless steel fiber blended yarn, and inorganic fiber core-spun yarn.

According to an aspect of the embodiments of the present invention, the flexible braided yarn includes braided fibers.

According to an aspect of the embodiments of the present invention, the woven fibers include one or more of polyester, vinylon, spandex, cotton, and animal fur.

According to one aspect of the embodiments of the present invention, the animal fur includes one or more of wool, mohair, rabbit hair, cashmere, camel hair, and yak hair.

On the other hand, an embodiment of the present invention provides a carpet capable of generating electricity, including the aforementioned triboelectric nano-generating fabric.

The triboelectric nano-power generation fabric provided by the embodiment of the present invention has good flexibility, and still has significant mechanical stability after the shape is changed at will, and has good durability. Fabrics and clothing have good comfort, fit, warmth retention and wear resistance, etc., can ensure the comfort of use and wearing, realize the combination of energy system and clothing, build wearable energy, energy collection efficiency It can be applied to the design of high-performance self-driven sensors with stable performance and easy large-scale integration, such as self-driven human sensors to achieve human health monitoring, which solves the poor durability of existing fabric triboelectric nanogenerators. and low energy harvesting efficiency.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the structural representation of the triboelectric nano-generating fabric provided by the embodiment of the present utility model;

2 is a schematic diagram of the power generation process of the triboelectric nano-power generation fabric and other fabrics provided by an embodiment of the present utility model;

3 is a schematic diagram of the power generation process between the tribo-nano power generation fabric and human skin provided by the embodiment of the present utility model;

FIG. 4 is a schematic structural diagram of a flexible conductive fiber skeleton of a triboelectric nano-power-generating fabric provided by an embodiment of the present invention.

Reference number:

1-Flexible conductive fiber skeleton, 11-Warp yarn, 12-Weft yarn, 21-Flexible woven yarn, 31-Cloth, 41-Human skin.

Detailed ways

The embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but cannot be used to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments.

In the description of the present invention, it should be noted that, unless otherwise specified, the terms "first" and "second" etc. are only used for description purposes, and should not be construed as indicating or implying relative importance; "multiple" The meaning of two or more; the orientation or positional relationship indicated by the terms "inner", "outer", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, only for the convenience of description The present invention and the simplified description are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

Referring to FIG. 1 , an embodiment of the present invention provides a triboelectric nano-power generation fabric, including a flexible conductive fiber skeleton 1 and flexible woven yarns 21 , the flexible conductive fiber skeleton 1 has a plurality of mesh structures, and the flexible woven yarns 21 are interspersed and arranged A flexible braided surface is formed on a plurality of mesh structures to cover the flexible conductive fiber skeleton 1 .

In specific use, the flexible conductive fiber skeleton 1 is grounded through wires and loads. When an external object, such as skin or a cloth with a different triboelectric sequence from the flexible knitting yarn 21, contacts and separates from the flexible knitting yarn 21, the flexible conductive fiber skeleton 1 can output electrical signals to supply power to the load.

As shown in FIG. 2 , when the flexible knitting yarn 21 rubs against other cloth 31 with different triboelectric sequences, when the two contact and separate, different charges will be generated on the surfaces of the two. Under the action of electrostatic induction, the flexible conductive A charge flow is generated between the fiber skeleton 1 and the load to convert mechanical energy into electrical energy. The generated electrical signal can be used as the power supply of other electrical devices, and can also be used as the sensing signal of the mechanical signal to realize the function of self-driven sensing.

As shown in FIG. 3 , when the flexible woven yarn 21 and the human skin 41 are rubbed, different charges will be generated on the surfaces of the two during the process of contact and separation. A flow is generated between the load and the load, thereby generating an alternating current signal to convert mechanical energy into electrical energy. The resulting electrical signal can be used to power powered devices, as well as for self-driven sensing.

It can be seen from the above description that the triboelectric nano-power generation fabric of the embodiment of the present invention has good flexibility, and still has significant mechanical stability after the shape is changed at will, and can be woven into clothing, so that it can be applied to the design of power generation clothing. Endows the fabrics and clothing with good comfort, fit, warmth and wear resistance, etc., which can ensure the comfort of use and wearing, and realize the combination of energy system and clothing to build wearable energy. In the specific implementation, the mechanical energy of the human body can be efficiently collected, and after the energy of the human body movement is collected, it can be used as a generator to provide a stable power supply for the wearable electronic device. It can also be applied to the design of high-performance self-driven sensors with stable performance and easy large-scale integration, such as self-driven human sensors to realize human health monitoring. In addition, it can also be applied to smart home appliances, etc.

The triboelectric nanometer power generation fabric of the embodiment of the present invention can be mass-produced by machine weaving technology. During specific weaving, a unilateral friction structure can be formed, that is, the flexible knitting yarn 21 is mainly formed on one side of the flexible conductive fiber skeleton 1, or a double-sided friction structure can be formed, that is, the flexible knitting yarn 21 is formed on the flexible conductive fiber skeleton. 1 on both sides.

Referring to FIG. 4 , as an optional embodiment, the flexible conductive fiber skeleton 1 includes warp threads and weft threads, and the warp threads and weft threads are arranged in sequence to form the flexible conductive fiber skeleton 1 .

In a specific implementation, the above-mentioned triboelectric nano-power-generating fabric with one-sided friction structure can interweave the warp yarn 11 and the weft yarn 12 by adjusting the parameters of the knitting machine, and at the same time, the flexible knitting yarn 21 is woven into the warp, weft and yarn through the unilateral weaving process of the knitting machine. Then, the flexible braided yarn 21 forms a flat rough surface on one side of the flexible conductive fiber skeleton 1 by one-side brushing of the machine. The tribo-nano-power-generating fabric of the above-mentioned double-sided friction structure can interweave the warp yarn 11 and the weft yarn 12 by adjusting the parameters of the knitting machine, and at the same time, the flexible knitting yarn 21 is woven into the warp and weft and the yarn through the double-sided knitting process of the knitting machine, and then passes through the machine. The double-sided brushing enables the flexible braided yarn 21 to form a flat rough surface on both sides of the flexible conductive fiber skeleton 1 . After the weaving is completed, wires can be externally connected at the corners of the flexible conductive fiber skeleton 1 .

The above-mentioned triboelectric nano-electricity fabric with one-side friction structure and tribo-nanoelectricity fabric with double-side friction structure are both single-electrode working modes.

As an optional embodiment, the warp wire can be a conductive wire with a low resistance value. The warp threads may include at least one strand of the first conductive fiber. When the first conductive fibers are multiple strands, the multiple strands of the first conductive fibers are intertwined with each other along the extending direction of the warp. Exemplarily, the diameter of the first conductive fibers may be 0.5-1.5 mm, such as 1 mm; the warp threads may be formed by braiding three strands of the first conductive fibers.

In a specific implementation, the selection of materials for the first conductive fibers is diverse. Exemplarily, the first conductive fibers can be selected from pure metal woven yarn, pure metal yarn, metal fiber core-spun yarn, metal fiber blended yarn, or pure stainless steel Textile yarn, pure stainless steel yarn, stainless steel fiber core spun yarn, stainless steel fiber blended yarn, or inorganic fiber core spun yarn. In addition, the above-mentioned different kinds of materials may be mixed and used. The resistance value of the warp can be adjusted by changing the type, diameter and number of twisted strands of the first conductive fibers.

As an optional embodiment, the weft thread can also be a conductive thread with a low resistance value. Similarly, the weft thread may include at least one strand of the second conductive fiber. When the second conductive fibers are multiple strands, the multiple strands of the second conductive fibers are intertwined with each other along the extending direction of the weft. Exemplarily, the diameter of the second conductive fibers can be selected to be 1 mm, and the weft can be formed by braiding three strands of the second conductive fibers.

In specific implementation, the selection of materials for the second conductive fibers is also diverse. Exemplarily, the second conductive fibers can be selected from pure metal textile yarns, pure metal yarns, metal fiber core-spun yarns, metal fiber blended yarns, and pure stainless steel. One or more of textile silk, pure stainless steel yarn, stainless steel fiber core-spun yarn, stainless steel fiber blended yarn, and inorganic fiber core-spun yarn. The resistance value of the weft can be adjusted by changing the type, diameter and number of twisted strands of the second conductive fibers.

In combination with the above, the resistance values of the warp and weft threads can be adjusted, so that the resistance value of the flexible conductive fiber skeleton 1 can be adjusted, and then triboelectric nano-power generation fabrics with different power generation properties can be produced.

As an alternative embodiment, the flexible braided yarn 21 includes braided fibers. The braided fibers are made into flexible braided yarns 21 by weaving and other processes. In practical applications, the length of the braided fibers can be selected to be 2-4 mm, for example, 3 mm.

In a specific implementation, the selection of woven fibers is diverse, for example, woven fibers can be selected from polyester, vinylon, spandex, cotton, or animal fur. In addition, the above-mentioned different kinds of materials may be mixed and used.

More specifically, the animal fur can be wool, mohair, rabbit hair, cashmere, camel hair or yak hair, etc., and can be mixed with the above-mentioned different kinds of materials.

Combined with the above, two possible application scenarios are listed:

When the triboelectric nano-power generation fabric of this embodiment is used as a large-scale energy harvesting device, the first conductive fibers and the second conductive fibers can be selected from pure metal textile yarns, pure metal yarns, pure stainless steel textile yarns, pure stainless steel yarns, etc. Fibers can be selected from polyester, wool, rabbit hair, etc.

When the triboelectric nano-electricity fabric of this embodiment is used as a small sensor device, the first conductive fiber and the second conductive fiber can be selected from metal fiber core-spun yarn, metal fiber blended yarn, stainless steel fiber core-spun yarn, stainless steel fiber blended yarn , Inorganic fiber core-spun yarn, etc., the woven fiber can choose vinylon, spandex, cotton fiber, mohair, cashmere, camel hair, yak wool, etc.

The embodiment of the present invention also provides a power-generating carpet, including the triboelectric nano-power-generating fabric of the above-mentioned embodiments. The power-generating carpet can be placed on the indoor or outdoor ground, and can be used to collect human body mechanical energy. The energy collection efficiency is high, and it is comfortable. Durable and structurally stable.

Those skilled in the art should understand that the above descriptions are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalents, the present utility model is also intended to include these modifications and variations.

Claims (8)

1. A friction nanometer power generation fabric is characterized by comprising a flexible conductive fiber framework and flexible weaving yarns, wherein the flexible conductive fiber framework is provided with a plurality of grid structures, and the flexible weaving yarns are arranged in the grid structures in an inserting mode to form a flexible weaving surface so as to coat the flexible conductive fiber framework; when an external object is in contact with and separated from the flexible braided yarns, the flexible conductive fiber framework can output electric energy outwards.

2. The triboelectric nanoelectrical generating fabric according to claim 1, wherein the flexible conductive fiber framework comprises warp and weft, and the warp and the weft are sequentially arranged crosswise to constitute the flexible conductive fiber framework.

3. The triboelectric nanoelectrical generating fabric of claim 2, wherein the warp comprises at least one first electrically conductive fiber; when the number of the first conductive fibers is plural, the plural first conductive fibers are mutually wound along the extending direction of the warp.

4. The triboelectric nanofabric of claim 3, wherein the first conductive fiber comprises one or more of a pure metal spun filament, a pure metal yarn, a metal fiber core spun yarn, a metal fiber blended yarn, a pure stainless steel spun filament, a pure stainless steel yarn, a stainless steel fiber core spun yarn, a stainless steel fiber blended yarn, an inorganic fiber core spun yarn.

5. The triboelectric nanoelectrical generating fabric of claim 2 or 3, wherein the weft comprises at least one second electrically conductive fiber; when the second conductive fibers are plural, the plural second conductive fibers are intertwined with each other in the extending direction of the weft.

6. The triboelectric nanofabric of claim 5, wherein the second conductive fibers comprise one or more of pure metal spun filaments, pure metal yarns, metal fiber core spun yarns, metal fiber blended yarns, pure stainless steel spun filaments, pure stainless steel yarns, stainless steel fiber core spun yarns, stainless steel fiber blended yarns, inorganic fiber core spun yarns.

7. The triboelectric nanoelectrical generating fabric of claim 1, wherein the flexible braided yarn comprises braided fibers.

8. A carpet capable of generating electricity, comprising the frictional nano-electricity generating fabric according to any one of claims 1 to 7.

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